jjroland opened this issue on May 08, 2007 · 212 posts
bagginsbill posted Fri, 06 March 2009 at 7:52 PM
Quote - with edge blend we can get that it reflects more when facing away and less when facing at the viewer right?
Yes, but that doesn't make it right. It makes it less wrong. Which is more similar to your head, an apple or a chair? The apple, right?
So if I draw you with an apple instead of your head, and also I draw you with a chair instead of your head, which is the "better" drawing? The one with the apple, right? Is it a realistic drawing? No. Less unrealistic, yes, realistic, no.
The Fresnel effect is very specific and not directly calculated by the Edge_Blend node, although using the Edge_Blend node (like the apple) is better than nothing. I used to approximate Fresnel with Edge_Blend. I also used to produce non-realism. I now produce 100% realism on Fresnel effects, because I use the real formula.
Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)